
#mian{
    width: 1500px;
    /*min-width: 1000px;*/
    /*max-width: 1500px;*/
    margin: 0 auto;
}
#box{
    width:100%;
    margin: 0 auto;
}
.left{
    float: left;
}
.right{
    float: right;
}
.nav{
    width: 200px;
}
.box2{
    width: 80%;
}
.commodityBox{
    margin: 5px;
    width: 30%;
    height: 100px;
}
.commodityBox img{
    width: 100px;
    height: 100%;
}
a:hover{
    color: yellow;
}
h1{
    color: red;
}
a{
    text-decoration: none;
    color:#333;
}
li{
    list-style: none;
}
